2 * ============LICENSE_START====================================================
4 * ===========================================================================
5 * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
6 * ===========================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END====================================================
22 package org.onap.aaf.cadi.taf.cert;
24 import java.io.ByteArrayInputStream;
25 import java.io.ByteArrayOutputStream;
26 import java.security.MessageDigest;
27 import java.security.NoSuchAlgorithmException;
28 import java.security.Signature;
29 import java.security.cert.CertificateException;
30 import java.security.cert.CertificateFactory;
31 import java.security.cert.X509Certificate;
32 import java.util.ArrayList;
34 import javax.net.ssl.TrustManagerFactory;
35 import javax.servlet.http.HttpServletRequest;
36 import javax.servlet.http.HttpServletResponse;
38 import org.onap.aaf.cadi.Access;
39 import org.onap.aaf.cadi.CachedPrincipal;
40 import org.onap.aaf.cadi.CadiException;
41 import org.onap.aaf.cadi.Lur;
42 import org.onap.aaf.cadi.Symm;
43 import org.onap.aaf.cadi.Access.Level;
44 import org.onap.aaf.cadi.CachedPrincipal.Resp;
45 import org.onap.aaf.cadi.Taf.LifeForm;
46 import org.onap.aaf.cadi.config.Config;
47 import org.onap.aaf.cadi.config.SecurityInfo;
48 import org.onap.aaf.cadi.config.SecurityInfoC;
49 import org.onap.aaf.cadi.principal.TaggedPrincipal;
50 import org.onap.aaf.cadi.principal.X509Principal;
51 import org.onap.aaf.cadi.taf.HttpTaf;
52 import org.onap.aaf.cadi.taf.TafResp;
53 import org.onap.aaf.cadi.taf.TafResp.RESP;
54 import org.onap.aaf.cadi.util.Split;
56 public class X509Taf implements HttpTaf {
58 private static final String CERTIFICATE_NOT_VALID_FOR_AUTHENTICATION = "Certificate NOT valid for Authentication";
59 public static final CertificateFactory certFactory;
60 public static final MessageDigest messageDigest;
61 public static final TrustManagerFactory tmf;
62 private Access access;
63 private CertIdentity[] certIdents;
65 private ArrayList<String> cadiIssuers;
67 private SecurityInfo si;
71 certFactory = CertificateFactory.getInstance("X.509");
72 messageDigest = MessageDigest.getInstance("SHA-256"); // use this to clone
73 tmf = TrustManagerFactory.getInstance(SecurityInfoC.SslKeyManagerFactoryAlgorithm);
74 } catch (Exception e) {
75 throw new RuntimeException("X.509 and SHA-256 are required for X509Taf",e);
79 public X509Taf(Access access, Lur lur, CertIdentity ... cis) throws CertificateException, NoSuchAlgorithmException, CadiException {
81 env = access.getProperty(Config.AAF_ENV,null);
83 throw new CadiException("X509Taf requires Environment ("+Config.AAF_ENV+") to be set.");
86 this.cadiIssuers = new ArrayList<String>();
87 for(String ci : access.getProperty(Config.CADI_X509_ISSUERS, "").split(":")) {
88 access.printf(Level.INIT, "Trusting Identity for Certificates signed by \"%s\"",ci);
92 Class<?> dci = access.classLoader().loadClass("org.onap.aaf.auth.direct.DirectCertIdentity");
96 CertIdentity temp[] = new CertIdentity[cis.length+1];
97 System.arraycopy(cis, 0, temp, 1, cis.length);
98 temp[0] = (CertIdentity) dci.newInstance();
101 } catch (Exception e) {
105 si = new SecurityInfo(access);
108 public static final X509Certificate getCert(byte[] certBytes) throws CertificateException {
109 ByteArrayInputStream bais = new ByteArrayInputStream(certBytes);
110 return (X509Certificate)certFactory.generateCertificate(bais);
113 public static final byte[] getFingerPrint(byte[] ba) {
116 md = (MessageDigest)messageDigest.clone();
117 } catch (CloneNotSupportedException e) {
118 // should never get here
126 public TafResp validate(LifeForm reading, HttpServletRequest req, HttpServletResponse resp) {
127 // Check for Mutual SSL
129 X509Certificate[] certarr = (X509Certificate[])req.getAttribute("javax.servlet.request.X509Certificate");
130 if(certarr!=null && certarr.length>0) {
131 si.checkClientTrusted(certarr);
132 // Note: If the Issuer is not in the TrustStore, it's not added to the Cert list
133 if(cadiIssuers.contains(certarr[0].getIssuerDN().toString())) {
134 String subject = certarr[0].getSubjectDN().getName();
135 // avoiding extra object creation, since this is validated EVERY transaction with a Cert
136 int at = subject.indexOf('@');
138 int start = subject.lastIndexOf(',', at);
142 int end = subject.indexOf(',', at);
144 end=subject.length();
147 if(((temp=subject.indexOf("OU=",start))>=0 && temp<end) ||
148 ((temp=subject.indexOf("CN=",start))>=0 && temp<end)) {
149 String[] sa = Split.splitTrim(':', subject, temp+3,end);
150 if(sa.length==1 || (sa.length>1 && env!=null && env.equals(sa[1]))) { // Check Environment
151 return new X509HttpTafResp(access,
152 new X509Principal(sa[0], certarr[0],(byte[])null),
153 "X509Taf validated " + sa[0] + (sa.length<2?"":" for aaf_env " + env ), RESP.IS_AUTHENTICATED);
163 byte[] certBytes = null;
164 X509Certificate cert=null;
165 String responseText=null;
166 String authHeader = req.getHeader("Authorization");
168 if(certarr!=null) { // If cert !=null, Cert is Tested by Mutual Protocol.
169 if(authHeader!=null) { // This is only intended to be a Secure Connection, not an Identity
170 for(String auth : Split.split(',',authHeader)) {
171 if(auth.startsWith("Bearer ")) { // Bearer = OAuth... Don't use as Authenication
172 return new X509HttpTafResp(access, null, "Certificate verified, but Bearer Token is presented", RESP.TRY_ANOTHER_TAF);
177 responseText = ", validated by Mutual SSL Protocol";
178 } else { // If cert == null, Get Declared Cert (in header), but validate by having them sign something
179 if(authHeader != null) {
180 for(String auth : Split.splitTrim(',',authHeader)) {
181 if(auth.startsWith("x509 ")) {
182 ByteArrayOutputStream baos = new ByteArrayOutputStream(auth.length());
184 array = auth.getBytes();
185 ByteArrayInputStream bais = new ByteArrayInputStream(array);
186 Symm.base64noSplit.decode(bais, baos, 5);
187 certBytes = baos.toByteArray();
188 cert = getCert(certBytes);
191 * Identity from CERT if well know CA and specific encoded information
193 // If found Identity doesn't work, try SignedStuff Protocol
194 // cert.checkValidity();
195 // cert.--- GET FINGERPRINT?
196 String stuff = req.getHeader("Signature");
198 return new X509HttpTafResp(access, null, "Header entry 'Signature' required to validate One way X509 Certificate", RESP.TRY_ANOTHER_TAF);
199 String data = req.getHeader("Data");
201 // return new X509HttpTafResp(access, null, "No signed Data to validate with X509 Certificate", RESP.TRY_ANOTHER_TAF);
203 // Note: Data Pos shows is "<signatureType> <data>"
204 // int dataPos = (stuff.indexOf(' ')); // determine what is Algorithm
206 bais = new ByteArrayInputStream(stuff.getBytes());
207 baos = new ByteArrayOutputStream(stuff.length());
208 Symm.base64noSplit.decode(bais, baos);
209 array = baos.toByteArray();
210 // Signature sig = Signature.getInstance(stuff.substring(0, dataPos)); // get Algorithm from first part of Signature
212 Signature sig = Signature.getInstance(cert.getSigAlgName());
213 sig.initVerify(cert.getPublicKey());
214 sig.update(data.getBytes());
215 if(!sig.verify(array)) {
216 access.log(Level.ERROR, "Signature doesn't Match");
217 return new X509HttpTafResp(access, null, CERTIFICATE_NOT_VALID_FOR_AUTHENTICATION, RESP.TRY_ANOTHER_TAF);
219 responseText = ", validated by Signed Data";
220 } catch (Exception e) {
221 access.log(e, "Exception while validating Cert");
222 return new X509HttpTafResp(access, null, CERTIFICATE_NOT_VALID_FOR_AUTHENTICATION, RESP.TRY_ANOTHER_TAF);
228 return new X509HttpTafResp(access, null, "No Certificate Info on Transaction", RESP.TRY_ANOTHER_TAF);
231 // A cert has been found, match Identify
232 TaggedPrincipal prin=null;
234 for(int i=0;prin==null && i<certIdents.length;++i) {
235 if((prin=certIdents[i].identity(req, cert, certBytes))!=null) {
236 responseText = prin.getName() + " matches Certificate " + cert.getSubjectX500Principal().getName() + responseText;
240 // if Principal is found, check for "AS_USER" and whether this entity is trusted to declare
242 return new X509HttpTafResp(
246 RESP.IS_AUTHENTICATED);
249 } catch(Exception e) {
250 return new X509HttpTafResp(access, null, e.getMessage(), RESP.TRY_ANOTHER_TAF);
253 return new X509HttpTafResp(access, null, "Certificate cannot be used for authentication", RESP.TRY_ANOTHER_TAF);
257 public Resp revalidate(CachedPrincipal prin, Object state) {